Home / 669,528.28-1,007,912.09-609,939.72

Finding the Fourth Proportional to 669,528.28, 1,007,912.09 and 609,939.72

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Solution

The fourth proportional to 669,528.28, 1,007,912.09 and 609,939.72 is: 918,207.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,528.28 : 1,007,912.09 = 609,939.72 : x
  2. Step 2: Convert to fraction form
    669,528.28/1,007,912.09 = 609,939.72/x
  3. Step 3: Cross multiply
    669,528.28x = 1,007,912.09 × 609,939.72
  4. Step 4: Simplify right side
    669,528.28x = 614,765,619,484.06
  5. Step 5: Solve for x
    x = 614,765,619,484.06/669,528.28
  6. Step 6: Final answer
    x = 918,207.10

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.